Disconnect switch for metal-encapsulated high-voltage switching

Details Disconnect switch for metal-encapsulated high-voltage switching Disconnect switch for metal-encapsulated high-voltage switching

1978-01-17

1979-04-10

Aegerter, Richard E.

Electricity: circuit makers and breakers

Electric switch details

Latches

200148R, H01H 920, H01H 930, H01H 948

Patent

active

041490541

ABSTRACT:
A disconnect switch for use with a metal-encapsulated high-voltage switching installation wherein the switch comprises a movable switching pin and a mating contact axially associated therewith. The switch is further provided with a tube of insulating material arranged in surrounding sliding relationship to the switching pin and with a spring means braced against the pin for applying a force to the tube. Latching means is also provided for latching the tube against the force of the spring means in the on and off positions of the switch. The latter means further cooperates with an unlatching means which, during the course of the movement of the switching pin to close the switch, releases the latching means, thereby causing the tube to bridge the gap between the mating contact and the pin before the latter elements make metallic contact.

REFERENCES:
patent: 2856480 (1958-10-01), Westerhoff
patent: 3939317 (1976-02-01), Noack et al.
patent: 4080521 (1978-03-01), Goedecke et al.

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